Portion of a shoe outsole



FIG. 1 is a front perspective view of a portion of a shoe outsole showing my new design;

FIG. 2 is a left rear perspective view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a right rear perspective view thereof; and,

FIG. 5 is a bottom plan view thereof, the amorphous broken line shapes within the claimed area being understood to define the bounds of the claimed design but form no part of the claimed design.

Throughout the views, all of the broken lines except for those understood to be boundary lines are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a portion of a shoe outsole, as shown and described. 